[BUG] Grafana does not show metrics from kafka and haproxy exporters

[rpudlowski93]

Describe the bug
Grafana does not show metrics from kafka and haproxy exporters. The problem occurs for the standard dashboards such as Kafka Exporter Overview Dashboard. Looks like a problem with Grafana since using Prometheus it is possible to scrape metrics from the mentioned above exporters.

How to reproduce
Steps to reproduce the behavior:

1. execute epicli init ...
2. edit config file and add logging, loadbalancer and kafka components
3. execute epicli apply ...
4. check grafana dashboard

Expected behavior
I would like to check metrics from kafka and haproxy exporters in Grafana dashboards.

Environment

• Cloud provider: [AWS | Azure, On-prem]
• OS: all[ARM][AMD]

epicli version: 0.10.0

Additional context

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DoD checklist

• Changelog updated (if affected version was released)
• COMPONENTS.md updated / doesn't need to be updated
• Automated tests passed (QA pipelines)
  • apply
  • upgrade
• Case covered by automated test (if possible)
• Idempotency tested
• Documentation updated / doesn't need to be updated
• All conversations in PR resolved
• Backport tasks created / doesn't need to be backported

[rafzei]

Check if Prometheus targets & Grafana's sources are set properly if so test with other dashboards.

[rpudlowski93]

Done in PR #2304

[przemyslavic]

Imported Kafka Exporter Overview and HAProxy dashboards.
After generating traffic (e.g. after running tests), metrics for both exporters were visible.